Preserve-jar



P. DEDREUX. PRESERVE JAR.

(No Model.)

No. 591,740. Patented Oct. 12,1897.

UNITED STATES PATENT OFFICE.

FREDERICK DEDREUX, OF CLEVELAND, OHIO.

PRESERVE-JAR.

SPECIFICATION forming part of Letters Patent No. 591,740, dated October12, 1897. Application ma August 26,1896. Serial No. 603,938. (No,model.)

2 and binds the flange and rubber band oppo- To all whom it mayconcern.-

Be it known that I, FREDERICK DEDREUX, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Preserve-Jars; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to preserve-jars; and the invention consists of asimple and effective construction whereby the jar is hermetically sealedand the cover securely fastened in place, substantially as described,and particularly pointed out in the claim.

The object of my invention is to provide a preserve-jar with a simpleand practical cover which will be air-tight, easily put on, and.requiring no additional parts other than the rubber band to keep thecover firmly on the jar.

In the accompanying drawings, Figure 1 is a sectional View of a jar anda cover thereon. Fig. 2 is a perspective view of the rubber band. Fig. 3is a side elevation of the neck or top of a jar, showing the parallelribs or corrugations.

The jar A has a tapered neck B, which has a series of parallel ribs orcorrugations 2, extending around the top of the neck B. These ribs orcorrugations 2 extend to about halfway down the neck to where a shoulder4 is formed to seat the rubber band C, which encircles the neck B andthe ribs 2. This rubber band is thin and removable and can be replacedat a slight cost whenever desired. The cap or cover D has adownwardly-extending flange 6, which is tapered on the inside tocorrespond to the taper of the neck. This cap or coverD can be made outof either metal or glass, as preferred.

When the jar has been filled with preserves or the like, the rubber bandC is slipped over the ribs 2 and the cover D is forced down over therubber band until as tight a fit as is desired is secured. The taper onthe inside of the flange 6 gradually forces the rubber band into thegrooves 3 and against the ribs site each rib. This serves to make aseries of binding-points which encircle the entire neck opposite 'eachrib, and as the ribs are parallel there is no possibility of any aircreeping into the jar, because if even one rib were uneven and allowedthe air to pass the others would prevent it. The pressure and frictionof the rubber band against the flange 6 cpposite each rib 2 is not onlysuflicient to form perfect sealing-joints, but also serves to hold thecover in place without any additional fastening parts. The partialvacuum that is formed within each jar when the contents are steamed andsettled aids in holding the cover in place. A flat tapering neck havinga rubber band between it and a corresponding flat tapering flanged coverwould partially accomplish this result, but I find in practice that sucha construction gives nowhere as good and perfect a result as I canobtain with a series of parallel ribs. It requires some force to removethe cover after being pressed down, the series of parallel ribs makingsuch firm frictional binding-joints. A greater hold could be obtained byhaving more ribs and a wider rubber band, but the number and size of theribs, as shown, are about right'and sufficient for an ordinarysized jar.

What I claim as new and desire to secure by Letters Patent, is-- A jarhaving a tapered neck and an annular recess about the top of the neckand parallel ribs around said neck retired from the plane of the neckbelow the recess, in combination with a thin and flat flexible banddrawn over said ribs and a rigid cover having a slightly-flarin g flangeengaged over said neck and bearing wholly upon said band to bind theband against and between said ribs, substantially as described.

W'itness my hand to the foregoing specification this 15th day of August,1896.

Witnesses:

H. T. FISHER, R. B. lWIosER.

